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Thank you for taking the time and care to make this. I'm better off for it now and can tidy up my project with confidence now! 😁

Glad to see you mention the marking of tightened fittings. It was mentioned to me over 50 years ago as a worthwhile habit and I have always done it. I then go around a job afterwards to check for the marks (bright red is my preference). It has only saved me once but it was in the loft of a 3 story house where the consequences of a leak couldn't have been much worse. My preference is to do an initial tighten of the olive with the pipe slightly (~1mm) pulled back from being bottomed in the fitting so that all the tightening force acts on the olive and isn't (after the olive grips the pipe) shared with the pipe pressing onto the shoulder in the fitting. I then open it up to see that the olive is seated happily against the fitting (lots of people don't seem to appreciate that the interface between the olive and the nut isn't sealing anything). I then apply potable jointing compound and firm to final torque and mark it. I also prefer copper olives to brass - usually involved bunging out the olives that come with most fittings.

Amazing! I learned a lot from this video. (Been doing things wrong for over 40 years lol) Thankyou so much for educating an amateur.

Thanks for educating me I have never used joint compound, with compression fittings. Thanks again

Very good advice and a well presented tutorial. Thank you.

Many thanks from across the pond--great information, well presented, & humorous to boot!

Well I managed 2 of the mistakes fitting a sink at the weekend. Noticed a drip on the floor today and then saw this video. I'll be taking it apart and refitting at the weekend, cheers for the tips😂

Hi, many thanks for all your advice. We’ve just refurbished our shower and want to say how helpful your plumbing tips are.

Top tips from Mr pipe man himself! I keep telling the Mrs, it’s essential to have some pipe lubricant next to the bed, for emergency plumbing situations!😎

Me personally I found this video very helpful and useful! Have a project I'm working on right now and was preferring to use the compression fittings so I'm going to take all his tips! Thanks great vid

very nice presentation, I'm fan. The tips are also worth watching & it's very well explained You had me with the tft tape. a Mistake that I would have made.

Well done! Straight forward and easy to understand.

Brilliant, cheers! Can I use FERNOX LS-X as jointing compound?

In all my years of DIY including working along side other trades including plumbers on refurb jobs I have never heard of this. Although I've never had a problem yet, it makes perfect sense and I'm all for good practice. Great video.

Good video 🎉mate you shared valuable information experienced explains everything, keep up your sharing mind 🎉

Great video james very informative

For me the best tip I ever learnt was to not place the copper tube hard up against the bottom of the fitting as when the olive grips the tube the nut will pull the tube into the fitting but wont allow a full seal around the olive so prior to tightening the nut back the tube out of the fitting by a couple of millimetre then tighten it up ..job done 👍

Thanks for this. I've made all these mistakes!

Brilliant! I love your wit!

Cheers ... Jointing compound.. need to find that. But I always put a wrap or two of PTFE tape on the olive of new fittings, just in case there is a small discontinuity (Roger, Skill Builder tip). Another tip I find useful is clean the pipe before fitting, with fine grit sand paper or one of those cleaner wire brush tools. can make a difference. Lastly another over tightening danger: stress can build up in the nut then one day it might crack and all hell will break loose when least expected, has happened to me.

So ... Don't overtighten... Don't undertighten... Great help, thanks!

Excellent video - so glad I watched before attempting to use compression fittings. Quick question - can you still nip up a compression fitting that has jointing compound after it’s been in place for a week, or does the compound go off and crumble if you try this? I thought I’d tightened it enough, but after a few days it started to seep (not condensation). Thanks 👍

EXCELLENT advice. I am a hydraulic Engineer and I have spent most of my career training fitters how to avoid leaks in high pressure systems. I watched this video to find similarities. Everything you have said is bang on and CORRECT. In respect of under-tightening, we get the nut spun down to the point where it contacts the 'cutting ring' (Our ring cuts into the pipe - slight difference) and we refer to that as the 'fixed point'. That is the point at which all tolerances from threads, tapers diameter differences are allowed for. We then mark the nut and the pipe and turn 1&1/2 turns. That is our industry, yours may differ. We then put a high visibility mark on the pipe and nut. Before start up, all visual checks can be made easily. GREAT VIDEO

Fantastic thanks for sharing this really enjoyed watching and very funny and fun 😂👍🏻

❤cool advice,ive used furnox joint compound in the past, the o 10:4 10:49 only trouble is it sets like concrete after a while,making it difficult if you have to remove a fitting. My favorite fitting is a yorkshire or end feed ,love solder

Always great tips thanks

Another great video. Thank you.

Thanks for the knowledge and entertainment.

Great guy, very amusing and informative. Thank you lol 👍

Awesome stuff - would have been useful to me a few years back - did a bathroom refit at home - and had to convert a main pipe in the floor with a compression fitting I used a 22mm olive in an old water pile to convert it to 15mm - old 7/8 water It had the smallest leak but take ages to seal it.

Wow...never knew these great tips!

Thank you for the video James, even tho i started watching your videos 6 years ago when i started doing my LVL 2 Diploma in Plumbing and heating. I'd advise anyone getting into Plumbing to get Monument olive cutter, it can fit in tight spaces, saves you time and effort.

thank you. great advice👍

Thankyou mate great tips

Another great video mate! Simple but effective for people! I have learned a lot from your videos ,not particularly from this one 😁 but love your videos and your talent in making them interesting! Looking forward for the next one!!! And yes I am one of those guys that have a drink after work and watch your videos until the end. 👍All the best, take care

Another tip, turn off your water when you go on holis

I've used an olive puller several times and it's always worked really well. However that olive cutter looks even better.

Caravan reference. Spot on. Exactly why I watched your video. Pipe leading to toilet is leaking from the top of the compression / isolation valve.

Curious to know what you think of blue liquid PTFE in a bottle (screwfix sell it) instead of using PTFE white tape?

Hold tight!! I had a questionable olive that I wrapped in PTFE tape about a month before this video came out. That and a little dan of Megalok, for lubrication, did the trick. Solid pipes on an old wash basin did not give much wiggle room. What is the tip for cranking them down right? Can you feel the olive start to engage? I tried snug, plus 1/4 turn. Still leaked. I kept the water on and stopped 1/4 past when the leak stopped.

Just found your channel and started watching, you give good advise and are quite entertaining but I was a bit confused at first cos I thought Bradley Walsh had his own plumbing channel.

This is golden sir!! Thank you for the information and the laughs, my caravan should be sealed water tight now 😂

Thanks from australia mate.good info👨‍🔧

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Great video! I had to replace a mains stopcock attached to the blue 25mm mdpe pipe under the kitchen sink. Could not unscrew the nut to remove it. Had to use an angle grinder with a thin cutting disc to very carefully cut through the brass nut and olive underneath. A rotary tool would be safer, I think.

Nice one, helped me out 👍🏼

some great tips there thanks !

Good point about low quality olives. Some might not have been annealed and therefor wont compress into the tapers properly. Just get them red hot and drop into cold water - so long as they are copper.

Great videos. I just bought a 3/4" compression ball valve to replace my home main shutoff just in case my shutoff at the street doesn't close enough to solder. However, I just noticed it doesn't have a packing nut under the lever! Never seen this before. Is it something new or just cheaply made therefore I should buy one with? Thanks so much!

I couldn't find the olive cutting tool on your Amazon store. Could you link it in the description please. Thanks.

I had recently changed the bathroom sink and tap but found that the copper pipes were angled and i didnt like how the braided tubes for the taps were bent around to suit the new tap location. So i changed it to nice straight lengths of copper pipe, brand new olives and fittings etc. I sent a pic to the plumber just to show if ive done the right thing (he is a friend as well just to see if ive done it all right) and I said i also used the fernox potable water jointing compound around the thread and also on the olive and he said I didn't need to use it at all because it was new fittings and to not really use it for new fittings. Just wondering if this is the case for any plumbers here? Like is it only for use on an existing fitting thats been fitted and is causing a leak, is it bad to use it on new fittings? I personally found it good to use because of the way everything was awkward to get to, it was easier to apply this than to wrap around tape and when tightening the fitting it seemed to then unscrew the connections to the tap that could only be screwed in by hand! So the compound helped me not have to tighten everything super tight, also as a diyer it takes a while to know when enough tightening is enough so its a slightly few less turns with the stuff applied to give it a watertight seal, making it ok to give it a bit more welly if needed instead of overtightening. I wanted to do it right as I had caused a massive leak before with the connections to the bath taps, I overtightened the speedfit to metal thread connection and it eventually cracked after a few months, water pouring downstairs XD So since then ive avoided eBay taps and overtightening lol

Hi I'm a sparks and if you remember MICC cables which have a similar olive and gland system I had the same thing educating apprentices on not over tightening the olives because if they were over tightened and the cable was moved you lost a good earth as the outer sheath was the earth. Brilliant vid and good tips. I looked for the olive splitter that you sowed and could not fine that particular one. I would like to add that to my plumbing kit. In the past I have used a junior hacksaw very carefully to remove an olive not quite cutting through.

Good stuff!! Thanks!

Great tip using the magic marker to mark nuts that have been tightened. I will use that for sure! Thank you. BTW: I usually use Silicone Grease instead of Jet Lube V2 Plus. I wonder if there any down side to using that instead?

I recently had to use PTFE tape under and over the olive on some compression stop ends and hopefully this will hold up until I get my bathroom replaced and get a pro to get rid of the whole thing.

Brilliant thank you

I have done plumbing for over 30 years and have never used any type of jointing compound on compression joints, guess whet i also have never had to go back to repair a leak either, well apart from the time some one put a nail through the pipe, which apparently i had done two weeks prior to been called out

Great ! Wish I had seen this when I was a lot younger. Yes I learnt by bitter experiance overtightening the fittings. Ptfe tape actually on the olive makes a lot of sense. You learn something every day. I like the mark you make on the fitting once tightened. Next episode how to fix a leak in your blow up doll😅

Good tips there , thanks

I've always used jointing compound but just a thin trace, not like icing on a sponge cake. And put some on the pipe before sliding the olive on because you're then sealing another potential leak point.

Learned something new about the PTFE tape - thanks!!! #enlightened

Hey PlumberParts! Thank you for the video. Great Tip with the Olive Cutter tool. You are Plumber Knight! :)

Very good advice for non plumbers like myself. I usually cut the olive off with a hacksaw blade as you suggest, and carefully. Presumably leaving the previous olive on is not a good idea?

Excellent thanks 👍

Great video. Been years since I’ve watched your videos. Only just showing up again for me!

Who knew again? Great tips. Thanks.

Great video and its made with humour

Great video, made my live easier:) Many thanks !!

I recently (a few days ago) found some "older" USA made 1/2" compression fittings and used one for a hose-bib / sillcock installation...no joining compound , no squeaks, no leaks...

Outstanding Performance ❤😮😊

We saw over-tightening. under-tightening, ways to mark joints not yet tightening but I certainly missed any discussion of how to tell the joint is tightened just right. Is there a type of torque wrench for this?

Love this guy 🎉

Radiator valves still need PTFE though. Maybe this is where the confusion comes from as it's a common diy job. Love this video. Genuinely funny and love the messy work bench and crap osb shelves. That's how most of us role 😂 well done mate.

I am so glad you mentioned at 7:05 about PTF tape round the thread . I come from a family of plumbers and it makes me angry when I see that bodge up under sinks and basins usually fitted by Kitchen fitters (Grrr!) I used to see it a lot when as a sparks I cross bonded pipes.

Great video James. By the way, you had in fact wrapped the ptfe around the thread the correct direction, but did it the wrong way around the olive.

U are as hilarious as u are knowledgeable in your craft, sir ! If u ever cross the pond, stop by in upstate NY!👍🏼 Thanks🔧

Nice one thanks

Apsolute quality teaching👊 I've seen so many ptfe tape joins around treads.exactly the same though what on earth is this😄👍👍👍cheers bud

Very good ideas.

i recently had some brass compression fittings replaced with white push fit what would you say is more reliable? (Central heating).

Hi Al. Sorry to be a pain but I've used push fit outside and after ten years they degrade. They crumble due to the weather sun etc, But yes they are easily replaced as you say. I suppose its a balance and upto the individuals preference. Regards Duncan.

I did that using the fernox jointing gear but i didn't use that much, just on the chamfer and smidge on the olive as i didn't want it in the rad system

Brilliant info, cheers.

Great video cheers

I was once told by a plumber that the manufacturers spent £millions on R&D to get compression fittings to seal properly, so under no circumstances do such a stupid thing as put anything on the joint. Stood me in good stead for donkeys years. A fitting that's been overtightened to the extent that it leaks means removing the fitting and a section of pipe and starting again.

Great tips, I'm not a plumber but i didnt know that there was a special past available now! What I've used to prevent the squeeking when tightening up the compression joints is appyling a very small amount of Vaseline (petroleum jelly) just a smear like you put on your lips around the olive and pipework and also a little on the threads this will make the olive slide and seat very smoothly, you just know that its not going to leak. Also if in future you have to undo it, it would come undone very easily, great for when replacing isolating valves and radiators valves, etc. I understand that vaseline is non toxic But better to use new approved stuff if used for drinking water. I wouldn't use it on these plastic push fit though as it might cause the rubber O-ring to deteriorate quicky.

Olive tip I was taught by an old school. If the olive is just so put something hard being it and tap firmly the other side and it just slides off. This really works.

Olive cutter. Very nice. I'm not a plumber, but have been doing a bit of water work DIY. Definitely had issues removing or not olives. I fancy a cutter, or maybe the hacksaw and screwdriver tip. Thanks good video, I'm going to slap on more jointing compound than I have been after seeing you use it.

Keen diyer on tip 1 do you compress [tighten olive ] on pipe 1st before applying sealant

Make sure pipe fits and correct length, make sure both sides of the olive are on the pipe by giving it a nip and visually checking it. In tight spaces, I have used a fitting away from the joint to give the olive a squeeze so it cannot move. A few wraps of PTFE tape around Olive or potable water sealing paste where applicable and no problem. You are posh poetable water I have always said potable water (Drinking Water). Not to tight not to loose and never ever think your brilliant and do not need to double check everything, it will still get you every now and then. The amount of experts I have met in life at all things who cock up all the time because they know they are perfect and do not need to check! Everyone can get caught every now and then so check check check. I stripped and assembled a hot water tank bottom fitting three times resealing each time and it still leaked to find at two o’clock in the morning a cracked reducer fitting, I had used the old ones! I had purchased new ones but the old fittings were ok (Not). It was a home job as well.

Many moons ago when a new version of the Electrical Witing Regs came out with major changes to Earth bonding we had to use conductive PTFE tape on plumbing fittings, but I believe the requirement was removed.

great vibes!

Thank you for this - bad habits are passed down the generations, my Dad (not a plumber) taught me (not a plumber) to wrap PTFE tape around the threads on a compression fitting. Your videos are the first time I've seen PTFE tape used on the actual pipe and olive!

Can’t wait to see mum in the next video, a beyond the grave special 😊

Genuine question. What does the compound actually do?

Nice video, and learned a lot while being playfully chastized along the way.

Some really useful information.Ive used and do still use compression fittings,fuel and water..As you say,the quality of components,the ""outsourced" has gotten less if not downright poor.The pipe dope idea is good especially with lesser quality fittings.A quality pipe dope is good to know.I ask welldrillers ,they know.The ptfe tape on the threads of a compression fitting? Got a chuckle out of that.Might as well duct tape the whole unit .Anyhow,a good bit of useful shared know how,THANKS.

Thanks for advice, just one thing why did you put a life span on PTFE tape?

"Ohh I've got feelingings" 😂 gold...